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US 2022/0388050 A1Published application
Spinning device and spinning method
AssigneeNihon Spindle Manufacturing Co., Ltd.
InventorYoshiaki Takada
Life of this patent
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Abstract
A spinning device includes a flange forming section that, in a state where a base material having a tubular shape and including at least a large-diameter portion and a small-diameter portion is relatively rotated, forms a flange portion protruding in a direction away from a center axis by pressing the large-diameter portion in a center axis direction of the base material while contacting an outer peripheral portion of the small-diameter portion.
Claims13
A spinning device comprising:
- a flange forming section that, in a state where a base material having a tubular shape and including at least a large-diameter portion and a small-diameter portion is relatively rotated, forms a flange portion protruding in a direction away from a center axis by pressing the large-diameter portion in a center axis direction of the base material while contacting an outer peripheral portion of the small-diameter portion.
A spinning method comprising:
- a machining process of performing machining on a base material having a tubular shape and including at least a large-diameter portion and a small-diameter portion,
- wherein in the machining process, a flange forming section is used to form a flange portion protruding in a direction away from a center axis by pressing the large-diameter portion in a center axis direction of the base material while contacting an outer peripheral portion of the small-diameter portion in a state where the base material is relatively rotated.
Dependencies are inferred from the claim text.